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    • 5. 发明授权
    • Method and apparatus for detecting embedded rebar within an interaction region of a structure irradiated with laser light
    • 在用激光照射的结构的相互作用区域内检测嵌入钢筋的方法和装置
    • US07289206B2
    • 2007-10-30
    • US10803267
    • 2004-03-18
    • Paul E. DenneyJay R. EastmanTa-Chieh Huang
    • Paul E. DenneyJay R. EastmanTa-Chieh Huang
    • G01J3/18G01J3/30G01N21/63
    • B23K26/032B23K26/03B23K26/034B23K26/043B23K26/12B23K26/123B23K26/128B23K26/142B23K26/16G01J3/02G01J3/0218G01J3/0291G01J3/28
    • A detection system is used during irradiation of an interaction region of a structure including embedded material with laser light. The detection system includes a collimating lens positioned to receive light emitted from the interaction region. The detection system further includes an optical fiber optically coupled to the collimating lens and a spectrometer optically coupled to the optical fiber. The spectrometer is adapted for analysis of the light for indications of the embedded material within the interaction region. The spectrometer includes an input slit adapted to receive light from the optical fiber. The input slit has a width selected to provide sufficient light transmittance and sufficient resolution. The spectrometer further includes an optical grating adapted to receive light from the input slit and to separate the light into a spectrum of wavelengths. The spectrometer further includes a collection lens adapted to receive a selected range of wavelengths of the separated light from the optical grating. The spectrometer further includes a light sensor adapted to receive the selected range of wavelengths and to generate a signal corresponding to an intensity of the received light.
    • 在包括具有激光的嵌入材料的结构的相互作用区域的照射期间使用检测系统。 检测系统包括准直透镜,定位成接收从相互作用区域发出的光。 检测系统还包括光学耦合到准直透镜的光纤和光学耦合到光纤的光谱仪。 光谱仪适用于分析相互作用区域内的嵌入材料的光的光。 光谱仪包括适于接收来自光纤的光的输入狭缝。 输入狭缝具有选择的宽度以提供足够的透光率和足够的分辨率。 光谱仪还包括适于接收来自输入狭缝的光并将光分离成波长范围的光栅。 光谱仪还包括适于接收来自光栅的分离光的选定波长范围的收集透镜。 光谱仪还包括适于接收所选择的波长范围并且产生对应于所接收的光的强度的信号的光传感器。